Answer this question truthfully
### Question: What causes Thrombophlebitis?
### Response: The following increase your chances for thrombophlebitis:
Being hospitalized for a major surgery or with a major illness Disorders that make you more likely to develop blood clots Sitting for a long period of time (such as on a long airplane trip)
There are two main types of thrombophlebitis:
Deep venous thrombosis (affects deeper, larger veins) Superficial thrombophlebitis (affects veins near the skin surface)